Tunnel arch transport vehicle

Abstract

This application relates to the field of arch frame transportation technology, and more particularly to a tunnel arch frame transport vehicle, which includes a traveling mechanism, a control mechanism, and a positioning component for carrying one or more arch frames; the control mechanism is used to control the lifting and horizontal rotation of the positioning component to move the arch frame to the top of the traveling mechanism; the control mechanism includes a lifting component disposed on the traveling mechanism and a rotating component disposed on the lifting end of the lifting component, the positioning component being disposed on the rotating end of the rotating component; the positioning component has two or more points for carrying a single arch frame. This application enables relatively stable and convenient transportation of arch frames.

Description

Technical Field

[0001] This application relates to the field of arch transport technology, and in particular to a tunnel arch transport vehicle. Background Technology

[0002] An arch frame is a steel structural component used to bear the pressure from the top and distribute the pressure from the soil layer during and after tunnel construction. It is an indispensable component in tunnel construction. During installation, the arch frame needs to be fitted snugly against the inner wall of the tunnel and is spliced ​​in sections. For relatively long tunnels, the arch frame needs to be transported from outside the tunnel to the construction site for installation.

[0003] In the construction of long tunnels, setting up inclined shafts is one of the main methods currently used to shorten the construction period. The inclined shafts are designed as large-scale mechanized construction sites. The arch frame is installed using a multi-functional arch frame installation machine. After the muck removal and roof leveling are completed, the arch frame needs to be assembled outside the tunnel and the connecting bars and steel mesh welded before being transported into the tunnel.

[0004] Due to the extremely steep slope of the inclined shaft, transporting the arch frames, especially two or more, by hoisting would not only risk collisions and interference between the frames themselves, but also a high probability of them colliding with the tunnel sidewalls due to swaying. Transporting the arch frames by loader would be risky due to poor visibility, the maximum slope of the inclined shaft being -12%, the large weight of the pre-assembled steel frames, and the potential shift in the center of gravity during transport, making safety impossible to guarantee. Therefore, finding a relatively stable method for transporting the arch frames is a pressing issue that needs to be addressed. Summary of the Invention

[0005] In order to enable relatively stable and convenient transportation of tunnel arch frames, this application provides a tunnel arch frame transport vehicle.

[0006] This application provides a tunnel arch transport vehicle, which adopts the following technical solution: A tunnel arch frame transport vehicle includes a traveling mechanism, a control mechanism, and a positioning component for carrying one or more arch frames; the control mechanism is used to control the lifting and lowering of the positioning component and its horizontal rotation to move the arch frame to the top of the traveling mechanism; the control mechanism includes a lifting component disposed on the traveling mechanism and a rotating component disposed on the lifting end of the lifting component, wherein the positioning component is disposed on the rotating end of the rotating component; the positioning component has two or more points for carrying a single arch frame.

[0007] By adopting the above technical solution, when transporting the arch frame, the lifting component only needs to control the rotating component and the positioning component to lower. At this time, the traveling mechanism can move to the bottom of the arch frame. Then, the positioning component is rotated so that it can lift the arch frame and rotate, so that the two ends of the arch frame are located in front of and behind the traveling mechanism, respectively, which facilitates transportation in the tunnel, reduces the width required on the travel route, and compared with the hoisting method, because the space inside the tunnel is limited, the arch frame will be close to the ground, which is very easy to interfere with the ground or the inner wall of the tunnel. The jacking and bearing method can not only make the arch frame stably placed on the traveling mechanism, but also make the arch frame distributed along the length of the tunnel. Even if there is a slope, the arch frame can still be transported relatively conveniently and stably.

[0008] Optionally, the positioning component includes a positioning seat disposed at the rotating end of the rotating component and a positioning part that slides horizontally relative to the positioning seat, the positioning part being used to support and position the arch frame.

[0009] By adopting the above technical solution, when transporting the arch frame, the load of the arch frame is applied to the rotating component through the positioning part and the positioning seat. When transporting multiple arch frames, the positioning part only needs to slide away from the positioning seat to accommodate the transport of multiple arch frames. At the same time, when transporting a single arch frame, the positioning part only needs to contract relative to the positioning seat to reduce the possibility of interference with existing equipment in the tunnel.

[0010] Optionally, the positioning seat has positioning parts on both sides opposite to each other, two positioning parts on the same side of the positioning seat, and the positioning seat has a telescopic member, the telescopic end of which is connected to the positioning part and used to control the telescopic extension and retraction of the positioning part relative to the positioning seat.

[0011] By adopting the above technical solution, when transporting multiple arch frames, it is only necessary for the positioning parts on both sides of the positioning seat to move away from the sliding, so as to reduce the center of gravity offset when transporting multiple arch frames, and the extension and retraction of the positioning parts can be controlled by the telescopic component.

[0012] Optionally, the positioning seat includes two bearing parts and a bearing expansion joint hinged to the rotating end of the rotating assembly. The opposing ends of the two bearing parts are both hinged to the rotating end of the rotating assembly. The telescopic end of the bearing expansion joint is hinged to the bearing part. A bearing beam is provided at one end of the two bearing parts away from each other. The positioning part is slidably connected to the bearing part through the bearing beam. The bearing beam is provided with a lifting component for hoisting.

[0013] By adopting the above technical solution, since tunnel construction not only requires the transportation of arch frames, but also often requires hoisting assistance during the installation of arch frames or other construction processes, after the arch frames are unloaded, the load-bearing expansion joint only needs to control the load-bearing part to rotate upwards, and cooperate with the rotating component to make the end of the load-bearing beam face the side of the traveling mechanism, so that the load-bearing part and the load-bearing beam can also extend the hoisting parts out of the traveling mechanism to assist in the installation of the arch frames, without the need to call up hoisting equipment separately, further optimizing the convenience of installation.

[0014] Optionally, the load-bearing beam is hinged to the load-bearing part, and the load-bearing part is hinged to a load-bearing hydraulic cylinder, the telescopic end of which is hinged to the load-bearing beam and used to control the rotation of the load-bearing beam.

[0015] By adopting the above technical solution, when hoisting is required, the bearing hydraulic cylinder only needs to control the rotation of the bearing beam, so that the bearing beam extends relatively fully relative to the bearing part, thereby optimizing the hoisting distance and height; when the arch frame needs to be transferred, the bearing beam only needs to be retracted, and the two bearing beams are made parallel to each other, so as to provide two points of support for the transport of the arch frame, further optimizing the convenience and stability of the arch frame transport.

[0016] Optionally, the bearing portion is provided with a locking portion at both ends of the bearing beam, and the two locking portions are used to lock the bearing beam when the bearing beam opens or closes.

[0017] By adopting the above technical solution, during the hoisting or transportation of the arch frame, the load-bearing beam is engaged with at least one of the clamping parts, reducing the possibility of the load-bearing beam deflecting when bearing load.

[0018] Optionally, the lifting component includes a winch mounted on the supporting beam and lifting wheels rotatably connected to the positioning part. The winch cable is laid on one end of the supporting beam or wrapped around the lifting wheels at both ends of the supporting beam. The supporting beam is provided with a buckle, which is used to secure the lifting end of the winch cable that passes over the lifting wheels.

[0019] By adopting the above technical solution, during hoisting, only the hoisting wheel at the end of the bearing beam needs to be used for hoisting. When transporting the arch frame, the arch frame can also be pre-tightened by binding it to the bearing beam with the cable of the hoist, thus optimizing the stability during transportation.

[0020] Optionally, the opposing top surfaces of the two bearing portions are provided with clearance surfaces, the tops of the two clearance surfaces are arc-shaped and extend away from each other, and the lower rotation paths of the two clearance surfaces intersect.

[0021] By adopting the above technical solution, when the load-bearing part is under load, the bottom of the avoidance surface can abut against each other, so that the two load-bearing parts can be locked together, thus optimizing the stability during use; at the same time, when one load-bearing beam rotates upward during hoisting, the other load-bearing beam rotates downward, so that the avoidance surface abuts against each other, thus simultaneously optimizing the stability and safety of hoisting.

[0022] Optionally, the rotating end of the rotating component is provided with a limiting member, which includes a horizontally arranged limiting beam. The limiting beam is slidably connected to the rotating end of the rotating component and the sliding direction has a displacement in the vertical direction. The load that drives the limiting beam to contract toward the rotating component is less than the weight of a single arch frame. An elastic pad is provided on the top surface of the limiting beam.

[0023] By adopting the above technical solution, when the arch frame is supported, it is very easy for it to sway during transportation because there are only two positioning support arch frames. At this time, the limiting beam will abut against the arch frame, and because the elastic pad supporting the arch frame will have local depressions, the lateral swing of the arch frame will be limited when it sways, so as to optimize the stability of transportation; at the same time, it can also adapt to arch frames of different specifications and sizes.

[0024] Optionally, the limiting beam is slidably connected to the rotating end of the rotating assembly via two elastic expansion joints, and the load-bearing part is located between the two elastic expansion joints.

[0025] By adopting the above technical solution, when limiting the load-bearing arch frame of the beam, the elastic expansion joint will contract so that the arch frame can be fully pressed against the ends of the two load-bearing parts.

[0026] In summary, this application includes at least one of the following beneficial technical effects: During the transport of the arch frame, the two ends of the arch frame are first placed on the ground. Then, the lifting assembly controls the rotating assembly and the positioning seat to descend. The traveling mechanism positions the positioning seat directly below the arch frame, with both ends of the positioning seat facing the inner edge of the arch frame. The positioning seat is then raised, so that at least two points of the arch frame are pressed against the positioning part or the end of the positioning seat, lifting the arch frame off the ground. Subsequently, the rotating assembly rotates, positioning the two ends of the arch frame in front of and behind the traveling mechanism, respectively. This reduces interference with existing equipment in the tunnel due to the arch frame's width during transport. Furthermore, because at least two points support the arch frame, even with a slope in the inclined shaft, swaying of the arch frame during transport can be effectively prevented. Multiple arch frames can also be placed simultaneously in the extended positioning part, optimizing transport efficiency and saving costs. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of this application.

[0028] Figure 2 yes Figure 1 A magnified structural diagram of part A in the middle.

[0029] Figure 3 This is a schematic diagram of the structure in the first direction of Embodiment 2 of this application.

[0030] Figure 4 yes Figure 3 A magnified structural diagram of part B.

[0031] Figure 5 This is a schematic diagram of the structure in the second direction of Embodiment 2 of this application.

[0032] Figure 6 yes Figure 5 A magnified structural diagram of section C.

[0033] Figure 7 This is a cross-sectional structural diagram of the limiting member and positioning component in Embodiment 2 of this application, mainly used to illustrate the structure of the limiting member.

[0034] Explanation of reference numerals in the attached drawings: 1. Traveling mechanism; 2. Control mechanism; 21. Lifting assembly; 22. Rotating assembly; 23. Limiting component; 231. Limiting beam; 232. Elastic pad; 233. Elastic expansion joint; 234. Telescopic tube; 235. Telescopic spring; 236. Cavity; 24. Connecting seat; 3. Positioning assembly; 31. Positioning seat; 311. Telescopic component; 312. Bearing part; 313. Bearing expansion joint; 314. Bearing beam; 315. Bearing hydraulic cylinder; 316. Locking part; 317. Clearance surface; 318. Locking block; 32. Positioning part; 33. Lifting component; 331. Winch; 332. Lifting wheel; 333. Buckle. Detailed Implementation

[0035] The following is in conjunction with the appendix Figure 1-7 This application will be described in further detail.

[0036] This application discloses a tunnel arch transport vehicle.

[0037] Example 1 Reference Figure 1 The tunnel arch frame transport vehicle includes a walking mechanism 1, a control mechanism 2, and a positioning component 3. The walking mechanism 1 is a wheeled or tracked walking system, which is existing technology and will not be described in detail here. In this embodiment 1, the walking mechanism 1 is a wheeled walking system, preferably a wheeled walking system that can be driven in both directions. The control mechanism 2 is located on the walking mechanism 1, and the positioning component 3 is located at the control end of the control mechanism 2, so as to control the lifting, lowering, and horizontal rotation of the positioning component 3 through the control mechanism 2.

[0038] The inventors discovered that when using hoisting for transportation, the construction of long tunnels significantly increases the one-way transportation distance. Furthermore, due to the slope of the inclined shaft, hoisting the arch frame to the front, away from the lifting device, leads to excessive shift in the center of gravity. Since the arch frame is relatively heavy, this not only easily causes swaying but also poses a significant safety hazard. Conversely, hoisting the arch frame to the rear of the lifting device causes it to be close to the device due to gravity, making it highly susceptible to collisions with the lifting device or transportation equipment during transport. This also presents a relatively large safety hazard, and it makes it impossible to transport multiple arch frames simultaneously, significantly increasing transportation costs.

[0039] In this embodiment 1, when transporting the arch frame by jacking, the control mechanism 2 only needs to control the positioning component 3 to lower and rotate the angle. The traveling mechanism 1 then travels to the underside of the arch frame. Afterward, the positioning component 3 is controlled to support one or more arch frames and lift them. Then, the positioning component 3 is rotated so that the two ends of the arch frame are distributed along the traveling direction of the traveling mechanism 1, facilitating transportation. At the same time, by jacking the arch frame, the weight of the arch frame is directly applied to the traveling mechanism 1 through the positioning component 3 and the control mechanism 2, which can effectively reduce swaying during transportation, optimize transportation stability, and compared with the hoisting method, the arch frame maintains the same height, significantly reducing the space required. It can also further reduce interference with tunnel construction and transport larger arch frames.

[0040] Reference Figure 1 Specifically, the control mechanism 2 includes a lifting assembly 21 and a rotating assembly 22. The lifting assembly 21 can be a hydraulic lifting platform, a hydraulic lifting winch, or a robotic arm. In this embodiment 1, the lifting assembly 21 is a hydraulic lifting winch, and the base of the lifting assembly 21 is fixed to the carrying platform of the traveling mechanism 1. The rotating assembly 22 is an electric turntable or a hydraulic turntable. In this embodiment 1, the rotating assembly 22 is an electric turntable, and the base of the rotating assembly 22 is fixed to the lifting end of the lifting assembly 21, i.e., the lifting platform of the lifting assembly 21. The positioning assembly 3 is installed on the rotating end of the rotating assembly 22.

[0041] Reference Figure 1 and Figure 2 The positioning component 3 includes a positioning seat 31 and a positioning part 32. The positioning seat 31 has a rectangular truss structure, and the middle part of the positioning seat 31 is fixed to the rotating end of the rotating component 22. The positioning seat 31 is horizontally arranged to support the arch frame and reduce the possibility of the arch frame sliding.

[0042] Four positioning parts 32 are provided, with two located on one side of the positioning base 31 along its length and the other two on the other side. The positioning parts 32 are located at the ends of the positioning base 31 along its length, ensuring that each arch frame bears load at two points, thus optimizing the stability of the arch frame. The positioning parts 32 have a rod-like structure and are inserted into and slidably connected to the positioning base 31. The positioning parts 32 are perpendicular to the positioning base 31, allowing for adaptive width adjustment when transporting single or multiple arch frames and reducing interference with equipment inside the tunnel. Each positioning part 32 is equipped with a telescopic member 311, which can be an electric cylinder or a hydraulic cylinder, preferably a hydraulic cylinder. The cylinder body of the telescopic member 311 is fixed to the positioning base 31, and the telescopic end of the telescopic member 311 is fixed to the positioning part 32. The telescopic direction of the telescopic member 311 is parallel to the positioning part 32.

[0043] The implementation principle of Example 1 is as follows: When transferring the arch frame, the arch frame needs to be placed at the ends of the positioning part 32 and the positioning seat 31. The specific process is as follows: First, the two ends of the arch frame are placed on the ground. Then, the lifting component 21 controls the rotating component 22 and the positioning seat 31 to descend. The traveling mechanism 1 makes the positioning seat 31 directly below the arch frame, and both ends of the positioning seat 31 face the inner edge of the arch frame. Then, the positioning seat 31 is raised, so that at least two points of the arch frame are pressed against the ends of the positioning part 32 or the positioning seat 31, thereby lifting the arch frame off the ground. After that, the rotating component 22 rotates, so that the two ends of the arch frame are respectively in front of and behind the traveling mechanism 1, so as to reduce interference with existing equipment in the tunnel due to the excessive width of the arch frame during transportation. Since at least two points bear the load of the arch frame, even if there is a slope in the inclined shaft, the swaying of the arch frame during transportation can still be effectively avoided. At the same time, multiple arch frames can be placed simultaneously in the extended positioning part 32, optimizing transportation efficiency and saving costs.

[0044] Example 2 Reference Figure 3 and Figure 4 The difference between this embodiment and Embodiment 1 is that the positioning seat 31 includes two bearing portions 312, two bearing expansion joints 313, and a bearing beam 314. The bearing portions 312 also have a rectangular truss structure. The rotating end of the rotating component 22 is fixed with a connecting seat 24. The opposing ends of the two bearing portions 312 are hinged to the connecting seat 24. The rotation planes of the two bearing portions 312 are vertically arranged and parallel to each other. The bearing expansion joint 313 is an electric cylinder or a hydraulic cylinder, preferably a hydraulic cylinder as in Embodiment 2. The cylinder body of the bearing expansion joint 313 is hinged to the connecting seat 24, and the telescopic end of the bearing expansion joint 313 is hinged to the bearing portion 312 and is located away from one or two of the bearing portions 312.

[0045] The cylinder body of the telescopic component 311 is fixedly installed on the bearing part 312. The end of the bearing beam 314 is hinged to one corner of the bearing part 312, and the hinged end of the bearing beam 314 partially extends out of the bearing part 312. A bearing hydraulic cylinder 315 is hinged to one side edge of the bearing part 312 corresponding to the hinged end of the bearing beam 314. The telescopic end of the bearing hydraulic cylinder 315 is hinged to the end of the bearing beam 314 that extends out of the bearing part 312, so as to control the rotation of the bearing beam 314 and its extension relative to the bearing part 312. A lifting component 33 for hoisting is provided at the end of the bearing beam 314 away from the hinged end, so that when the bearing beam 314 is in contact with the end of the bearing part 312, it can be used to support the arch frame. The positioning part 32 is inserted and slidably connected to the bearing beam 314. The top surface of the positioning part 32 is flush with the top surface of the bearing beam 314 and the two are parallel to each other, so as to support multiple arch frames at the same time.

[0046] After the arch frame is transported, the bearing beam 314 can be opened relative to the bearing part 312 by the bearing hydraulic cylinder 315, so that the lifting part 33 can be extended. With the up and down rotation of the bearing part 312, it can also play a lifting role to assist in the construction inside the tunnel. Compared with only lifting, the two bearing beams 314 not only support the relatively stable arch frame, but also the bearing beams 314 can be unfolded and used as a truck-mounted lifting tool with the lifting part 33. This can reduce the space occupied by the equipment in the limited space of the tunnel, reduce the time for equipment transportation, and further optimize the efficiency of construction.

[0047] Reference Figure 3 and Figure 4 Furthermore, since the load-bearing beam 314 needs to support the load of the arch frame or hoisted items, in order to optimize the stability of the load-bearing beam 314, the load-bearing part 312 is provided with locking parts 316 at both ends of the load-bearing beam 314. The locking parts 316 are groove structures formed in the load-bearing part 312, and both locking parts 316 are located on the rotation path of the load-bearing part 312. At the same time, the side of the load-bearing part 312 has a locking block 318 protruding from it corresponding to the locking parts 316, which is used to lock and engage with the locking parts 316, so that the load borne by the load-bearing beam 314 can be transmitted to the load-bearing part 312 relatively stably, reducing the possibility of the load-bearing beam 314 bending relative to the load-bearing part 312.

[0048] Reference Figure 5 and Figure 6The lifting component 33 includes a winch 331 and lifting wheels 332 rotatably connected to the positioning part 32. The winch 331 is fixedly installed at the bottom of the supporting beam 314. The cable of the winch 331 is laid on one end of the supporting beam 314 or wound around the lifting wheels 332 at both ends of the supporting beam 314. In this embodiment 2, the lifting wheels 332 are arranged one-to-one with the supporting beam 314, and the lifting wheels 332 are rotatably connected to the end of the supporting beam 314 away from the hinge end, so that they can be fully extended and adjusted to adjust the lifting height in conjunction with the rotation of the supporting part 312. In order to reduce interference between the lifting component 33 and the arch frame or other field equipment, the supporting beam 314 is provided with a buckle 333. The buckle 333 is used to lock the lifting end of the cable on the winch 331 that passes over the lifting wheel 332, that is, to lock the hook fixed on the cable. Of course, the winch 331 can also be replaced by an electric hoist.

[0049] Reference Figure 4 Meanwhile, since both ends of the two load-bearing parts 312, which are far apart, need to bear the load of the arch frame, in order to further optimize the stability of the load-bearing parts 312 when bearing the arch frame, the end faces of the two load-bearing parts 312 facing each other are formed with relief surfaces 317. The top of the relief surface 317 has an arc-shaped structure, and the bottom of the relief surface 317 is flat and perpendicular to the length direction of the load-bearing part 312. This allows the two load-bearing parts 312 to rotate downward from a straight state, which will be restricted from rotating downward because the bottom of the relief surface 317 abuts against each other, thus avoiding the situation where the load is borne entirely by the load-bearing expansion joint 313. When the load-bearing parts 312 rotate upward, the existence of the arc surface of the relief surface 317 allows the two load-bearing parts 312 to rotate upward relative to each other. When one load-bearing part 312 rotates upward at a certain angle, the other load-bearing part 312 can rotate downward at a certain angle, so that the two relief surfaces 317 abut against each other. With the help of temporary counterweights, the purpose of mutual locking can be achieved.

[0050] Reference Figure 7 Finally, in order to further optimize the stability of the arch frame placed on the two supporting beams 314, the rotating end of the rotating component 22 is provided with a limiting member 23, which is used to adaptively limit the swaying of the top of the arch frame of different specifications.

[0051] Specifically, the limiting member 23 includes a horizontally arranged limiting beam 231 and two elastic expansion joints 233. The limiting beam 231 is located above the bearing portion 312 and is perpendicular to the bearing portion 312. The bearing portion 312 is located between the two elastic expansion joints 233. Each elastic expansion joint 233 includes two interlocking telescopic tubes 234 and a telescopic spring 235 disposed within the two telescopic tubes 234, and the two telescopic tubes 234 are axially slidably connected.

[0052] Reference Figure 7One telescopic tube 234 is fixedly connected to the rotating end of the rotating assembly 22, and the other telescopic tube 234 is fixed to the bottom of the limiting beam 231, with the telescopic tube 234 arranged vertically. A telescopic spring 235 is coaxially arranged inside the telescopic tube 234, and both ends of the telescopic spring 235 abut against the rotating ends of the limiting beam 231 and the rotating assembly 22, respectively, so that the limiting beam 231 slides relative to the rotating end of the rotating assembly and has a vertical displacement.

[0053] The two telescopic springs 235 have a contraction load less than the weight of a single arch frame, and the top surface of the limiting beam 231 is covered with an elastic pad 232, such as a rubber sheet. The elastic pad 232 has several cavities 236 formed inside, and the cavities 236 in the elastic pad 232 are filled with a non-Newtonian fluid to limit the swaying of the arch frame at any position.

[0054] The implementation principle of Example 2 is as follows: During the transport of the arch frame, when the arch frame is pressed against the two supporting beams 314, it will simultaneously press against the elastic pad 232 on the top surface of the limiting beam 231. As the part of the elastic pad 232 corresponding to the arch frame will elastically contract, it will push the limiting beam 231 towards the rotating component 22. Since the arch frame has an arc-shaped structure, in conjunction with the two supporting beams 314, the arch frame will have three bearing points, which can further optimize the stability of the arch frame during transportation. Furthermore, since the arch frame has a tendency to sway and there will be instantaneous impact, the non-Newtonian fluid in the cavity 236 inside the elastic pad 232 will restrict the swaying of the arch frame, thereby achieving the purpose of limiting the swaying of the arch frame at any position.

[0055] When the arch frame does not need to be transferred, the bearing beam 314 can be opened to a parallel angle relative to the bearing part 312 so that the hoisting wheel 332 is sufficiently far away from the bearing part 312. Then the bearing part 312 is rotated upwards, and with the winding cable of the winch 331, the hoisting purpose can be achieved, which can be used as an on-site construction aid.

[0056] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A tunnel arch frame transport vehicle, characterized in that: It includes a walking mechanism (1), a control mechanism (2), and a positioning assembly (3) for supporting one or more arches. The control mechanism (2) is used to control the lifting and horizontal rotation of the positioning component (3) to move the arch frame to the top of the walking mechanism (1); The control mechanism (2) includes a lifting assembly (21) disposed on the walking mechanism (1) and a rotating assembly (22) disposed on the lifting end of the lifting assembly (21), wherein the positioning assembly (3) is disposed on the rotating end of the rotating assembly (22); The positioning component (3) has two or more points that support a single arch frame; The positioning component (3) includes a positioning seat (31) disposed at the rotating end of the rotating component (22) and a positioning part (32) that is horizontally slidable relative to the positioning seat (31). The positioning part (32) is used to support and position the arch frame. The positioning seat (31) is provided with positioning parts (32) on both sides opposite to each other. Two positioning parts (32) are provided on the same side of the positioning seat (31). The positioning seat (31) is provided with a telescopic member (311). The telescopic end of the telescopic member (311) is connected to the positioning part (32) and is used to control the telescopic extension of the positioning part (32) relative to the positioning seat (31). The positioning seat (31) includes two bearing parts (312) and a bearing expansion joint (313) hinged to the rotating end of the rotating assembly (22). The opposing ends of the two bearing parts (312) are both hinged to the rotating end of the rotating assembly (22), and the telescopic end of the bearing expansion joint (313) is hinged to the bearing part (312). The two bearing parts (312) are provided with a bearing beam (314) at one end away from each other. The positioning part (32) is slidably connected to the bearing part (312) through the bearing beam (314). The bearing beam (314) is provided with a lifting component (33) for hoisting. The bearing beam (314) is hinged to the bearing part (312), and the bearing part (312) is hinged to the bearing hydraulic cylinder (315). The telescopic end of the bearing hydraulic cylinder (315) is hinged to the bearing beam (314) and used to control the rotation of the bearing beam (314). The rotating end of the rotating component (22) is provided with a limiting member (23), the limiting member (23) includes a horizontally arranged limiting beam (231), the limiting beam (231) is slidably connected to the rotating end of the rotating component (22) and the sliding direction has a displacement in the vertical direction, the load that drives the limiting beam (231) to contract toward the rotating component (22) is less than the weight of a single arch frame, and the top surface of the limiting beam (231) is provided with an elastic pad (232).

2. The tunnel arch transport vehicle according to claim 1, characterized in that: The bearing part (312) is provided with a locking part (316) at both ends of the bearing beam (314). The two locking parts (316) are used to lock the bearing beam (314) when it opens or closes.

3. The tunnel arch frame transport vehicle according to claim 1, characterized in that: The hoisting component (33) includes a winch (331) mounted on the bearing beam (314) and a hoisting wheel (332) rotatably connected to the positioning part (32). The cable of the winch (331) is laid on one end of the bearing beam (314) or wrapped around the hoisting wheel (332) at both ends of the bearing beam (314). The bearing beam (314) is provided with a buckle (333), which is used to secure the hoisting end of the winch (331) cable that passes over the hoisting wheel (332).

4. The tunnel arch transport vehicle according to claim 1, characterized in that: The two bearing portions (312) have opposing top surfaces with clearance surfaces (317). The tops of the two clearance surfaces (317) are arc-shaped and extend away from each other. The lower rotation paths of the two clearance surfaces (317) intersect.

5. The tunnel arch frame transport vehicle according to claim 1, characterized in that: The limiting beam (231) is slidably connected to the rotating end of the rotating assembly (22) via two elastic expansion joints (233), and the bearing part (312) is located between the two elastic expansion joints (233).

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